6 research outputs found
New method for comparing colour gamuts among printing technologies
The authors have developed a simple method to compare the colour gamuts of
different industries (printing, textiles, plastics, etc.) based on representing the reproduced
colours in constant lightness L* and hue hab* planes. This method allows the analysis of those
aspects related to the comparison between the colour gamuts of different industries and the
MacAdam and Pointer limits and also of those aspects related to how the colour solid is filled,
whether homogeneously or leaving certain unfilled regions for commercial or design reasons. In
particular, the authors have compared the colour gamuts of three printing technologies
(electrophotography or laser, inkjet and offset) with the same class of paper and
characterisation chart, and in this comparison the laser printer has proved to be the best of
three printing devices. On the other hand, the authors have checked that gravure technology is
better than the other ones due to the substrate nature used at gravure technology.This research was supported by the Ministerio de
Educación y Ciencia (Spain) under grant
no. DPI2005-08999-C02-02, and by the Conselleria
d’Empresa, Universitat i Ciència of the Generalitat
Valenciana (Spain) under grant no. IIARC0/2004/59
Assessment of the colorimetric behaviour of different spectrophotometers
Comunicación presentada en 36th IARIGAI International Research Conference, Stockholm, September 2009.Colour reproduction is based on the ability to communicate colour information accurately. The different instrument manufacturers, models and conditions result in difficult colour communication due to the loose or inexistent inter-instrumental agreement between them. With this study we have tried to develop an application to correct colour instruments by software by applying multidimensional polynomial transformations between pairs of instruments. This application will filter one spectrophotometer measurement, and apply a correcting factor to emulate the colorimetric response of any other spectrophotometer
A new method for comparing colour gamuts among printing technologies
Comunicación presentada en la 32nd IARIGAI Research Conference, Porvoo, Septiembre 2005This research was supported by the ConsellerÃa d’Empresa, Universitat i Ciència of the Generalitat
Valenciana (Spain) by means of the grant number IIARC0/2004/59
Desarrollo de una herramienta de software para la correspondencia de las mediciones de espectrofotómetros
Esta investigación pretende desarrollar una herramienta de software que permita minimizar las diferencias interinstrumentales de diferentes espectrofotómetros que se han detectado; con esto, se pretende conseguir la emulación de cualquier equipo por otro dado y de este modo minimizar las diferencias de medición entre estos instrumentos, mejorar la comunicación de datos de color y facilitar las labores de control de calidad en procesos de gestión de color.Esta investigación ha sido financiada por el Instituto de la Mediana y Pequeña Empresa Valenciana, IMPIVA y cofinanciada por los Fondos europeos de Desarrollo Regional, FEDER
Nanopigments in offset printing inks
Comunicación presentada en 36th IARIGAI International Research Conference, Stockholm, September 2009.Nanopigments are a new type of pigment. They are hybrid materials consisting of organic dyes and layered silicate nanoparticles. Nanopigments are already applied to make polymeric coatings and they had shown improvement in mechanical, thermal and stability properties of the substrate and dyes (Batenburg and Fischer, 2001). In this work, nanopigments had been synthesized to be applied in the manufacture of offset printing inks. Therefore, four different nanopigments are pursuit: cyan (C), magenta (M), yellow (Y), and black (K), in order to obtain primary colour for a four-colour-process system
Desarrollo de tintas offset basadas en nanopigmentos: sÃntesis, formulación, ensayo y caracterización de propiedades
El presente proyecto, se ha centrado en el estudio de nuevas tintas de impresión para tecnologÃa de impresión offset, en cuyas formulaciones se han incorporado nanopigmentos novedosos y ecológicos, y en la evaluación de su idoneidad para implementarlas industrialmente en un futuro cercano.Esta investigación ha sido financiada por el Instituto de la Mediana y Pequeña Empresa Valenciana, IMPIVA y cofinanciada por los Fondos europeos de Desarrollo Regional, FEDER